There are several network topologies, clustered and not clustered, that allow WebSphere® Application Server to interoperate with WebSphere MQ by using WebSphere MQ as an external JMS messaging provider. For providing high availability, some topologies are more suitable than others.
For completeness, this topic describes a wide range of topologies, including clustered and highly available topologies. Note that, for clustering and high availability, you need to use the network deployment or z/OS version of the product.
The WebSphere Application Server high availability framework eliminates single points of failure and provides peer to peer failover for applications and processes running within WebSphere Application Server. This framework also allows integration of WebSphere Application Server into an environment that uses other high availability frameworks, such as High Availability Cluster Multi-Processing (HACMP), in order to manage non-WebSphere Application Server resources.
The following examples show the main network topologies for interoperating withWebSphere MQ using the WebSphere MQ messaging provider. Each of the four examples describes two network topologies, with varying locations for the application servers and queue managers.